I'm an engineering student right now but I know exactly how you feel. I like the content but the thought of working full time terrifies me. I spent a couple of months as an intern/observer in a company and I can't imagine devoting my life to work. It would almost certainly make me burn out in a year or two.

I've been looking into jobs that work few hours but are highly qualified and they're usually outside consultants that get called in a couple of days a week. Apart from them there was one person who worked in a refinery that only had to be at work 20ish hours a week. She spent most of the rest at home on call or simply working from home. I recall that she enjoyed it.